diff --git a/index.html b/index.html
index 8f63a62..d340f4f 100644
--- a/index.html
+++ b/index.html
@@ -284,6 +284,8 @@ <h3><a href="https://github.com/DrobyshevDev/stadion" rel="noopener">stadion</a>
           </p>
           <div class="command"><span class="p">$ </span>pip install stadion-rl</div>
           <div class="card-foot">
+            <a class="more" href="https://drobyshevdev.github.io/stadion/" rel="noopener">Documentation
+              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14M13 6l6 6-6 6"/></svg></a>
             <a class="more" href="#evidence">The measurements
               <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14M13 6l6 6-6 6"/></svg></a>
             <a class="more" href="https://github.com/DrobyshevDev/stadion" rel="noopener">Repository
@@ -610,6 +612,7 @@ <h4>Documentation</h4>
           <li><a href="https://drobyshevdev.github.io/mlango/" rel="noopener">mlango</a></li>
           <li><a href="https://drobyshevdev.github.io/glia/" rel="noopener">glia</a></li>
           <li><a href="https://drobyshevdev.github.io/decisionrl/" rel="noopener">decisionrl</a></li>
+          <li><a href="https://drobyshevdev.github.io/stadion/" rel="noopener">stadion</a></li>
           <li><a href="https://drobyshevdev.github.io/lemma/" rel="noopener">lemma, the course</a></li>
           <li><a href="https://drobyshevdev.github.io/research/" rel="noopener">research</a></li>
         </ul>
diff --git a/ru/index.html b/ru/index.html
index 9600185..617e2ef 100644
--- a/ru/index.html
+++ b/ru/index.html
@@ -282,6 +282,8 @@ <h3><a href="https://github.com/DrobyshevDev/stadion" rel="noopener">stadion</a>
           </p>
           <div class="command"><span class="p">$ </span>pip install stadion-rl</div>
           <div class="card-foot">
+            <a class="more" href="https://drobyshevdev.github.io/stadion/" rel="noopener">Документация
+              <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14M13 6l6 6-6 6"/></svg></a>
             <a class="more" href="#evidence">Замеры
               <svg viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2.5" stroke-linecap="round" stroke-linejoin="round" aria-hidden="true"><path d="M5 12h14M13 6l6 6-6 6"/></svg></a>
             <a class="more" href="https://github.com/DrobyshevDev/stadion" rel="noopener">Репозиторий
@@ -609,6 +611,7 @@ <h4>Документация</h4>
           <li><a href="https://drobyshevdev.github.io/mlango/" rel="noopener">mlango</a></li>
           <li><a href="https://drobyshevdev.github.io/glia/" rel="noopener">glia</a></li>
           <li><a href="https://drobyshevdev.github.io/decisionrl/" rel="noopener">decisionrl</a></li>
+          <li><a href="https://drobyshevdev.github.io/stadion/" rel="noopener">stadion</a></li>
           <li><a href="https://drobyshevdev.github.io/lemma/" rel="noopener">lemma, курс</a></li>
           <li><a href="https://drobyshevdev.github.io/research/ru/" rel="noopener">research</a></li>
         </ul>